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Wednesday, July 6, 2011




Mongolia Briefing is a magazine and daily news service about doing business in Mongolia. We cover topics relating to the Mongolian economy, the market in Mongolia, foreign direct investment and Mongolian law and tax. It is written in-house by the foreign investment professionals at Dezan Shira & Associates



Mongolia to Use Massive Ice Blocks for Summer AirCon

Nov. 17 – Mongolia is to launch one of the world’s biggest ice-making experiments later this month in an attempt to combat the adverse affects of global warming and the urban heat island effect. The geo-engineering trial, that is being funded by the Ulaanbaatar city government, aims to “store” freezing winter temperatures in a giant block of ice that will help to cool and water the city as it slowly melts during the summer.

The scientists behind the 1 billion tugrik (US$700,000) project hope the process will reduce energy demand from air conditioners and regulate drinking water and irrigation supplies. If successful, the model could be applied to other cities in the far north. The project aims to artificially create “naleds” – ultra-thick slabs of ice that occur naturally in far northern climates when rivers or springs push through cracks in the surface to seep outwards during the day and then add an extra layer of ice during the night. Unlike regular ice formation on lakes – which only gets to a meter in thickness before it insulates the water below – naleds continue expanding for as long as there is enough water pressure to penetrate the surface. Many are more than seven meters thick, which means they melt much later than regular ice.

A Mongolian engineering firm ECOS & EMI will try to recreate this process by drilling bore holes into the ice that has started to form on the Tuul river. The water will be discharged across the surface, where it will freeze. This process – effectively adding layers of ice rinks – will be repeated at regular intervals throughout the winter. The qualities of naleds (also known as Aufeis, German for “ice on top”) have been known for hundreds of years. The North Korean military used them to build river crossings for tanks during the winter and Russia has used them as drilling platforms. But engineers usually see them in negative terms as a threat to railways and bridges.

The Anglo-Mongolian company believe their proposed use in Ulaanbaatar could set a positive example that allows northern cities around the world to save on summer air conditioning costs, regulate drinking supplies, and create cool micro-climates.

“Everyone is panicking about melting glaciers and icecaps, but nobody has yet found a cheap, environmentally friendly alternative,” said Robin Grayson, a Mongolian-based geologist. “If you know how to manipulate them, naled ice shields can repair permafrost and building cool parks in cities.”

He said the process will work in cities where the summer is intolerably hot and winters have at least a couple of months with temperatures of -5C to -20C.

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